ASTM B338 Titanium Heat Exchanger Tube RFQ Checklist
An ASTM B338 titanium tube inquiry should state the grade, seamless or welded route, outside diameter, wall thickness, length, condition, tolerances, testing and documentation. “Titanium condenser tube” without these details leaves critical acceptance requirements undefined.
Core RFQ Fields
| Field | What to provide |
|---|---|
| Material | Titanium grade and UNS designation |
| Specification | ASTM B338 or ASME SB338 and applicable revision |
| Route | Seamless or welded, when required |
| Dimensions | OD, wall, length, tolerances and quantity |
| Condition | Specified heat-treatment and surface condition |
| Testing | Required nondestructive, leak, pressure and dimensional examinations |
Heat Exchanger Details
State tube-sheet hole size, expansion or welding method, tube-end preparation, straightness, cleanliness and any internal or external surface requirement. Equipment service data should include process and cooling media, concentration, temperature, velocity, pressure, deposits, cleaning and shutdown conditions.
Grade Selection
Grade 2 titanium tube is widely evaluated for many industrial and seawater heat exchangers. Grade 7 titanium tube may be evaluated for specific aggressive or crevice conditions. Grade selection belongs to the equipment corrosion and mechanical design review.
Testing and Documentation
Define the required eddy-current, ultrasonic, hydrostatic, pneumatic or other examination according to the invoked specification and project. Request MTC, heat or lot traceability, dimensions, test results and third-party inspection only where needed.
Prepare a Traceable Tube Inquiry
Review ASTM B338 Titanium Tube, Titanium Heat Exchanger Tube and Titanium Condenser Tube.
FAQ
Does ASTM B338 automatically mean seamless tube?
No. The specification includes product scope that can cover seamless or welded tube as ordered. State the required route.
Is grade and OD enough for a price?
No. Wall, length, route, condition, tests, quantity and documents materially affect the supply.